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OpenAI

GPT-5.4 nano

VS
OpenAI

GPT-5.4 Pro

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, GPT-5.4 nano is the premium intelligence choice, scoring 52.4% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: GPT-5.4 Pro is 3.4x cheaper to run. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, GPT-5.4 Pro offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GPT-5.4 nano fully justifies the cost.

Model Specs

GPT-5.4 nano

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+)
52.4%
Reasoning (gpqa-diamond)Winner (+15.2%)
82.8%

Cost & Performance

Cost (per 1M tokens)
$0.46Input: $0.20 | Output: $1.25
Speed1.4x faster
191 tps
Context Window
400k tokens
Model Specs

GPT-5.4 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
67.6%

Cost & Performance

Cost (per 1M tokens)3.4x cheaper
$0.14Input: $0.05 | Output: $0.40
Speed
137 tps
Context Window
400k tokens
Read our data collection methodology

Frequently Asked Questions

GPT-5.4 Pro is cheaper than GPT-5.4 nano. GPT-5.4 Pro has a blended cost of $0.14/1M tokens, which is about 3.4x cheaper than GPT-5.4 nano at $0.46/1M tokens.

GPT-5.4 nano is faster than GPT-5.4 Pro. GPT-5.4 nano generates 191 tokens per second (tps) compared to GPT-5.4 Pro which generates 137 tokens per second.

GPT-5.4 nano is better for coding tasks. It scores 52.4% on coding evaluations (swe-bench-pro) compared to GPT-5.4 Pro which scores N/A.

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